中文摘要：

采用双螺杆挤出机熔融制备了聚丁烯-1（PB．1）／滑石粉复合材料，研究了滑石粉含量对PB．1熔融及结晶行为的影响。结果表明，滑石粉显著促进了PB-1的结晶过程，其成核能力在滑石粉质量分数为1％时最佳。非等温结晶动力学研究表明，在滑石粉的实验用量范围内（1％-10％），要达到相同的结晶度，PB-1／滑石粉复合材料的完成温度明显高于纯PB-1的完成温度。当滑石粉质量分数为1％～5％时，要达到相同的结晶度，PB-1／滑石粉所需的时间明显比纯PB．1短；当用量为7％时稍短；当用量为10％时又稍长。但滑石粉不影响PB-1的依热成核方式和三维生长机制。偏光显微镜结果表明滑石粉对PB-1的异相成核作用显著。广角X射线衍射研究表明滑石粉阻碍了PB-1由晶型Ⅱ向晶型Ⅰ的转变过程，使晶型转变变缓。

英文摘要：

The polybutylene-1 / talcum （ PB-I / talcum ） composites were prepared by twin-screw extruder, and effects of talcum on the melting and crystallization behaviors of PB-1 were investigated. The results showed that the crystallization process of PB-1 was accelerated by talcum. Talcum acted as a nucleation agent to PB-1 ＇s crystallization and its nucleation effect was optimum when its content was 1%.The investigations for the non-isothermal crystallization kinetics of PB-1 and PB-1 /talcum indicated that the temperature to reach a given crystallinity for PB-1 /talcum was much higher than that of pure PB-1 at the experimental talcum contents （ 1%- 10% ）. Moreover,the time to reach a given crystallinity for PB-1/talcum was much shorter than that of pure PB-1 as talcum content was 1% - 5%, and it was a little shorter as talcum was 7%, whereas it changed a little longer as talcum was 10%. The thermal nucleation mode and three dimensional growth mechanism of PB-1 ＇s crystallization were remained unchanged even though talcum was presented. The polarizing optical microscope results indicated that the nucleation effect of talcum on the crystallization of PB-1 was markedly, whereas the WAXD results showed that the transition process of crystalline form Ⅱ to form Ⅰ for PB-1 was retarded by the presence of talcum.